Hi everyone, quick update, no change in Charlies persona or attitude, pretty convinced its not dog dementia, as when given food or the possibility of a walk he's like a mad puppy (no sign of old creaky bones either), he's just become very very miserable and has now snapped at me a few times, if he were human he would have been in a home long ago, now its just a case of we feed him twice a day and that is our only interaction with him, he growls when stroked, he growls when sent to toilet, he basically just growls except when eating, hey ho